Question

very Short Answer Questions.
(d) cell
0
Name any four insulators
Name the materials used for making:
(a) filament of an electric bulb (b) heating element of an electric heater
Short Answer Typel Questions
Name any four electrical appliances in which the heating effect of current is utilised.
what is meant by resistance of a wine?
2. What is an electromagnet?
a Short Answer Typell Questions
What is the relationship between the amount of electric current passed and the heat produced
(e)switch in ON position, wire
Give the electrical symbols for: (a) resistance, (b) electric cell
, (c) battery, (d) electric bulbs
2. What is short circuit? What are the causes of short-circuit?
Write any three uses of an electromagnet.
4 Ram and Neeraj are alone at home. Ram is watching TV while Neeraj is playing with his toy. The
battery in his toy gets discharged. He decides to charge it and connects the plug to the same
socket to which the TV is connected. The table fan in their room is also connected to that socket.
Suddenly, after a few seconds, Ram sees a heavy spark near the socket. He immediately puts off
the main switch and calls his neighbours for help.
(ə) What do you think is the reason for the heavy spark in the socket!
(b) What do you learn from Ram's behaviour?
Value Corner
E Long Answer Questions:
What is a solenoid? Draw a diagram with a solenoid connected in a circuit. How can you increase
the strength of a solenoid?
2. (a) Give two advantages of electromagnets over a permanent magnet. What type of magnet is
used in an electric bell?
(b) Draw a labelled diagram of an electric bell.
3. What is overloading? Why is a fuse wire necessary in a circuit. How does it work?
1.
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give correct answers for brainist​

Answer 1

Answer:

cell is a cell form so smoothie Nolan within